Wood-heel-blank holder



Nov. 4 1924. 1,514,174

H. w. RUSS WOOD HEEL BLANK HOLDER Filed Oct. l2, 1922 To @ZZ 'whom it' may Gomera'.

Patented Nov. 4, 1924.

Nrrao sr HARLEY W. nnss, or HAVERHILL, MASSACHUSETTS.

Woon-HEEL-BLANK HOLDER.

Application med-October 12, 1922. Serial No. 594,115.

Be it known that I, HARLEY W.,RUss, a citizen of the United States, a resident of Haverhill, county of Essex, State of Massachusetts, have invented an Improvement in llVood-I-Ieel-Blank Holders, of which the following is a specification.

This invention relates to certain improvements in means for manufacturing wood heels, and more particularly to the blank holding means used in performing "the various operations which are necessary in producing the finished heel, two of the more important of which lare the operations of grooving, which consists in forming kthe breast surfaces, and turning, which vconsists in shaping the sides and back. A. machine for performing the grooving operation is illustrated in my pending application Serial No. 587,893, and, incidental to `the description thereof, a form of jack is illustrated, which is provided with two projecting pins, in the clamp Vmemberwhieh engages the base, arranged to enter twoholes whichv have previously been bored in the base i portion of the blank.

While this arrangement possesses all the advantages stated,'in that the blank is held in precisely the same relation to the operating parts in each machine in which the blank is placed, so that the operations will be performing in exact predetermined relation 1 to each other, yet the operation of boring the holes inthe blank is a separate operation, which adds materially to the cost of`manufacture. f

The object of the present invention is to provide means whereby all the advantages incident to the use of the positioning pins may be retained, but the cost of preparing the blank for the reception thereof may be eliminated. Y

I accomplish this object by providing the member of the clamp, 'or jack usedtohold the blank in performing the grooving operation with means which act to form positioning recesses in the blank, by the action `,of

forcing the clamping members into clamping engagement therewith, so that, when the blank is removed therefrom, and placed 'in another machine, which is provided with a holding means similar to that employed 'in the first machine, the blank will be positioned therein in the same relation to the tools which are to operate thereon to perform the next operation, as to the tools which performed the preceding operation.k

For a further disclosure of the invention reference Lis made to the accompanying ydrawing in which:

Fig. 1 isa side elevation of a heel-blankclamp embodying my invention.

F ig. 2 is ra yplanview. of the base-engaging member. y

Fig. 3 is an end view thereof. v

F ig. 4 is ak sectional view at line 1 -4: of F ig. f

Fig. 5 is 'a detailview of one of the supy porting and guidingjdevces of the blank gage table.

Figs, 7. and 8 are detail end, side and sectional views, respectively, of one of the positioning recess forming pins. e

Fig.' 9 is a detailview of a form of positioning pin which is preferably employed.

Figs. 10 and `l1 are sectional views of a wood heel blank before yand after it has been clamped. y n f Thevr kparticular heel-clamp or j ack, illustrated isy of well known form, and comprises a main support2, having an upright t thereon, to which theclamp member 6, for the top ofthe blank, is attached, a clamping screw 7 being arranged in kan .arm 8 on the upright to force the member 6 into clamping jengagement with the top side of a blank supmit the same to move vertically to a limited extent, said means comprising three vertical guide pins 16, which are fixed in the table 14C, two of which are slidable in the vcross bar 12 andthe third in the cross bar 10, and three vertical screws 18 which extend through the table and are threaded in the cross bars adjacent said pins, said tablebeing slidable onthe screws and supported by springs 20 thereon, which act normally to hold the table in contact withr the heads thereof. The right angularly disposed :edges of the table 14,

which are adjacent the plate 9, are held in close proximity to the edges of the latter and gage plates 22 and 24 are mounted on the upper side of the tablev 14, and are pro* vided with faces at their front edges for engaging the back and one side face of a wood heel blank, said gage plates being adj ustable to and from said edges, respectively, of the table 14, and, being held at a distance therefrom, and in parallel relation, respectively, thereto, depending on the size of the blank, so that, when* a bla-nk is placed in position on the base member, its rear side will be engagedl with the face of the gage 22 and one side with the face of the' gage 24, and its under side portions adjacent said sides will lrest on the upper surface of table 14. i

A pair of metal pins 25l are mounted in upright position at a suitable distance apart, in sockets formed to receive the Vsame in the support2, said pinsextending through the wooden plate 9, and each having a pointed end-portion 25a, preferably of conical form, which projects beyond a shoulder 25b held flush with the upper surface of the plate 9. The eXtreme end of each end portion is truncated and capped out centrally, as sho-wn in Figs. 6 and 8, to'provide a sharp cutting edge 25 at the extremey end of said conicaly portion. Said projections are of such a length, or said table 14 is so adjusted by means of the screws 18, thatvthe edges 25C are in thev plane of the upper surface of the table, so that, whena heel blankv is placed in position on the latter, itl will also be supported on said edges. The arrangement of the pins 25 with relation to the gages, 22, 24 is such that when the blank is placed in position on the table 14, with its edges engaging the faces of said gages, the ends-of the pins will engage the base face of the blank in its middle longitudinal line.

With the above described construction, when a blank, as :c in Fig. 10, is placed in position on the table 14, as-shown in Fig. 1, and the top member is forced down into engagement therewith, the table 14 will be pressed downward with the blank,` thereby causing the blank to be pressed down on the pointed end-portions of the pins 25 and causing the `formation of correspondingly shaped conical recesses, as ai', therein, so that, after the blank has been operated on, and removed ready to be placed in another machine, the recesses thus formed will enable the blank to be exactly positioned for the neXt operation. Preferably, the clamp for holding the heel for the next operation will be provided with pins, as 26, shown in Fig. 9, which are similar to the pins 25, and will be-located in precisely the same relation as said pins 25, their ends being preferably somewhat rounded as shown, so that the blank maybe placed thereon with greater facility.

The particular formation of the pins 25, at their ends, is advantageous for the reason that their end edges 25C will cut the fibers of the wood as they are pressed therein, while, if the ends were sharply pointed, there would be a tendency to move the blank sidewise out of position thru variations in hardness of the fibers, and as the fibers are actually cut, and a portion thereof is forced inward, the possibility that the fibers will spring back and refill the recess is greatly lessened.

During the grooving or turning operation on the blank, the pins are'also effective in preventing sidewise movement of the blank between the clamp members.

When the pressure on the blank is removed, the springs 20 beneath the table 14 will lift the latter and free the blank from the pins 25.

lVith the above will be apparent that the' formation of the positioning recesses will be merely incident to the operation of clamping the blank in position and therefore are formed without expense. r

I claim:

1. A wood heel blank holder comprising an upwardly facing clamp member having a pair ofl upwardly projecting pins constructed and arranged to form positioninov recesses in the blank as it is clamped on said member, a vertically movable tableA horizontally disposed over said member adja` cent said pins and having a blank-supporting face on its upper side, yieldable means for sustaining said table with its face adj acent the level of the upper endsI ofsaid pins and means extending above said face to hold the blank thereon in position tofpermit the pins to penetrate the same at predetermined points as the blank is clamped.

described construction it v2. A wood heel blank holder comprising an upwardly facing' clamp member having a pair of upwardly projecting pins constructed and arranged to form positioning recesses in the blank as itis clamped against said member, a vertically movable table'horizontally disposed over said memberadj acent said pins and having a blank supporting face on its upper side, yieldable means for f sustaining said table with its face at the level of the upper ends of said pins and means arranged to engage a side and an end of the blank to yposition the same on said face with relation to said pins and to hold' it in positioned relation as it is forced into clamped position.

3. A wood heel blank holder comprising an upwardly` facing clamp member, a pair of vertically projecting metal pins mounted on said member and having end portions adapted to be forced into the blank as it is clamped, a vertically movable table arranged over said member adjacent said pins and having a horizontally disposed blank-supf porting face, yieldable means for sustaining said table with its face at the level of the upper ends of said pins, and blank positioning means on said table for holding the blank on its face in predetermined relation to said pin as it is forced to clamped position.

4. A wood heel blank holder comprising an upwardly facing clamp member, a pair of vertically projecting metal pins mounted on said member and having end portions adapted to be forced into the blank, as it is clamped, a vertically movable table arranged over said member adjacent said pins and having a horizontally disposed blanksupporting face, spring actuated means for sustaining said table with its face at thel level of the upper ends of said pins, and gages mounted for independent horizontal adjustment to engage a side and an end of a blank on said face and position it in relation to said pins and to hold it in positioned relation as it is clamped.

5. A wood heel blank holder comprising a clamp member adapted to engage the base side of the blank, a pair of metal pins mounted therein having positioning-recess forming end portions at their upper ends, a table having a blank-supporting face and 3@ blank-positioning means thereon, and spring actuated means for normally supporting said table with its said face on a level with the upper ends of said pins, said means being adapted toyield to permit the blank to be clamped against said member and forced onto the end portions of said pins and to lift the blank when it is unclamped.

6. A wood heel blank holder comprising a clamp member having a horizontally disposed olamping face on its upper side arranged to engage the base surface of a blank, a pair ofmetal pins mounted in said member and having tapering end-portions projecting vertically upward beyond they face thereof, a table having angularly disposed gagevfaces thereon arranged to engage adjacent sides of the blank, to position the same in predetermined relation to said pins, andr havinga blank-*supporting surface in front of said faces, means for yieldingly supporting said table with said surface at the level of the ends of said pins and means for forcing the blank downwardly, to clamp it against the face of said member, and force it onto the end portions of the pins, to form a pair of positioning recesses therein.

In testimony whereof, I have signed my name to this specification.

HARLEY W. RUSS. 

